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Assertion : Solids having more F-centre possess intense colour Reason: Excess of `Na^(+)` in `NaCI` solid having F-centers makes it appear pinkA. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertionC. If assertion is true bur reason is falseD. If assertion is false bur reason is true

Answer» Correct Answer - c
Excese `Na^(+)` in `NaCI` solid in f-centre dropeds yellow colour


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